Home / 10,617.67-15,926.51-3,121.23

Finding the Fourth Proportional to 10,617.67, 15,926.51 and 3,121.23

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Solution

The fourth proportional to 10,617.67, 15,926.51 and 3,121.23 is: 4,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,617.67 : 15,926.51 = 3,121.23 : x
  2. Step 2: Convert to fraction form
    10,617.67/15,926.51 = 3,121.23/x
  3. Step 3: Cross multiply
    10,617.67x = 15,926.51 × 3,121.23
  4. Step 4: Simplify right side
    10,617.67x = 49,710,296.91
  5. Step 5: Solve for x
    x = 49,710,296.91/10,617.67
  6. Step 6: Final answer
    x = 4,681.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.